customerservlet.java

基于netbeans的java桌面应用程序合集

/*
 * CustomerServlet.java
 *
 * Created on 2008年1月30日, 上午8:25
 */

package Adam;

import java.io.*;
import java.net.*;
import java.util.Vector;

import javax.servlet.*;
import javax.servlet.http.*;

/**
 *
 * @author acer
 * @version
 */
public class CustomerServlet extends HttpServlet {
    
    /** Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        response.setContentType("text/html;charset=gb2312");
        HttpSession session=request.getSession(true);
        String action=request.getParameter("action").trim();
        String [] selectedCount=request.getParameterValues("choose");
        DataBaseBean dbBean=new DataBaseBean();
        Vector vec=new Vector();
        if(action.equals("select")){
            String productName=request.getParameter("productName");
            String searchType=request.getParameter("searchType");
            if(productName==null || productName.equals("")){
                session.setAttribute("namenull","namenull");
                vec=dbBean.selectProduct("select * from product ");
             }else if(searchType.equals("jingque")){
                vec=dbBean.selectProduct("select * from product where product_name like'"+productName+"'");
             }else if(searchType.equals("mohu")){
                vec=dbBean.selectProduct("select * from product where product_name like'%"+productName+"%'");
             }
            session.setAttribute("result",vec);
            this.forward(request,response,"searchview.jsp");
        }else if(action.equals("getall")){
            vec=dbBean.selectProduct("select * from product");
            session.setAttribute("result",vec);
            this.forward(request,response,"searchview.jsp");
        }else if(action.equals("next")){
            String pageno=request.getParameter("pageno");
            this.forward(request,response,"searchview.jsp?pageno="+pageno);
        }else if(action.equals("previous")){
            String pageno=request.getParameter("pageno");
            this.forward(request,response,"searchview.jsp?pageno="+pageno);
        }else if(action.equals("addtocart")){
            if(selectedCount!=null){
                CartBean cartbean=null;
                Vector tempvec=(Vector)session.getAttribute("result");
                if(session.getAttribute("cart")==null){
                    cartbean=new CartBean();
                }else{
                    cartbean=(CartBean)session.getAttribute("cart");
                    
                }
                for(int i=0;i<selectedCount.length;i++){
                    cartbean.addToCart(tempvec,selectedCount[i]);
                }
                session.setAttribute("cart",cartbean);
            }
            this.forward(request,response,"cartview.jsp");
        }else if(action.equals("delete")){
            if(selectedCount!=null){
                CartBean cartbean=(CartBean)session.getAttribute("cart");
                for(int i=0;i<selectedCount.length;i++){
                    cartbean.deleteFromCart(selectedCount[i]);
                }
                session.setAttribute("cart",cartbean);
            }
            this.forward(request,response,"cartview.jsp");
        }else if(action.equals("gotocheckout")){
            this.forward(request,response,"checkout.jsp");
        }else if(action.equals("checkout")){
            CartBean cartbean=(CartBean)session.getAttribute("cart");
            dbBean.checkOut(cartbean);
            session.setAttribute("cart",null);
            session.setAttribute("check","ok");
            this.forward(request,response,"checkout.jsp");
        }
       
    }
    private void forward(HttpServletRequest request,HttpServletResponse response,String url)
    throws ServletException,IOException{
        RequestDispatcher dispatcher=request.getRequestDispatcher(url);
        dispatcher.forward(request,response);
    }
    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     */
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
    throws ServletException, IOException {
        processRequest(request, response);
    }
    
    /** Returns a short description of the servlet.
     */
    public String getServletInfo() {
        return "Short description";
    }
    // </editor-fold>
}